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. 2013 Jun;13(2):512–517. doi: 10.4314/ahs.v13i2.44

Table 3.

Comparison of prevalence of helminth infections of the study groups for Phase 1¥ and Phase 3©

Study groups Prevalence (%) Prevalence (%) Percent Decline
Per Parish Per study
Arm
Per
Parish
Per study
Arm
Per Parish Per study
Arm
Chi-Square
(P-value)
Control (24.6) 29.7 (10.2) 15.9 14.4 14.5 16.90
(34.2) (20.7) 13.5 (0.00)
Experimental (12.3) 23.5 (9.9) 17.1 2.4 8.5 6.41
(38.8) (23.8) 15.0 (0.01)
27.6 16.5 11.1 1.83
0.18
¥

Phases 1 - Pre-intervention

©

Phases 3 - Post-intervention

Mantel - Haenszel's Chi-square used